What does the prefix 'exo-' imply in terms of location?

The prefix 'exo-' denotes a position that is outside or external to a certain structure or location. In medical terminology, this prefix is often used to describe conditions or parts that are oriented outward or situated beyond the boundaries of a given area. For example, in the term "exocrine," which refers to glands that secrete their substances outside the body or into cavities, the 'exo-' prefix clearly indicates this outside location. This understanding is critical in the field of medicine as it helps in accurately describing various anatomical and physiological processes.